Answer:
was this in (( ????
Step-by-step explanation:
if I was I can help
Answer:
y=-6 x= 11
Step-by-step explanation:
Use simultaneous equations.
Add the 2 equations together
-7x-2y = -65 + 7x-9y=131
then you get -11y = 66
so y = -6
then substitute that value into the one of the other equations
7x - 9(-6) = 131
7x+54 = 131
7x = 77
x= 11
